Multifunctional voltage relay for AC, DC, 3(N)AC systems Underfrequency 81<U*, overfrequency 81>O*, overvoltage 59*, undervoltage 27*, phase sequence 47*, unbalance 47*, vector shift 78*, * ANSI codes

Multifunctional voltage relay with CD440 coupling device Device features • When combined with a CD440 coupling device, DC systems up to 1200 V, 1AC systems up to 690 V, 3AC systems up to 1200 V and 3NAC systems up to 690 V can be monitored • All functions are represented in ANSI codes • Single-fault safety • Unbalance, phase failure and phase sequence monitoring • Monitoring of the connected switches and/or disconnectors (configurable: NC/NO/off) • Islanding detection df/dt (ROCOF) • Vector shift function • RS-485 interface (data exchange/parameter setting/software update) • Test function to...

LINETRAXX® VMD461 with CD440 coupling device Operating elements lights when the voltage supply is available and the device is in operation; flashes when the device is being started or when an internal device error has occurred Alarm LEDs, yellow: installation switched off Only ALARM 1 lights: alarm relay K1 has tripped Only ALARM 2 lights: alarm relay K2 has tripped ALARM 1 and ALARM 2 light: response value violation of voltage or frequency, df/dt, vector shift detection, unbalance, phase sequence, remote trip ALARM 1 and ALARM2 flash: internal device error or error in contact monitoring 4 -...

LINETRAXX® VMD461 with CD440 coupling device Connection AC: VMD461 with CD440 (earthed system) Connection AC: VMD461 with CD440 (unearthed system) L1

LINETRAXX® VMD461 with CD440 coupling device Connection 3(N)AC: VMD461 with CD440 (unearthed system) PE Legend wiring diagrams Supply voltage US (see ordering details) Power supply connection Connection to alarm relay K1 Connection to alarm relay K2 D1: Feedback signal contact to alarm relay K1 D2: Feedback signal contact to alarm relay K2 (feedback signal contacts optionally NC/NO/off)* RT1: Remote-trip input (optionally NC/NO/off)* Connection to communication interface BMS bus Activate or deactivate the terminating resistor of the BMS bus (120 O ) * Explanation: NC (closed in non-operating...

LINETRAXX® VMD461 with CD440 coupling device Z BENDER Possible wiring diagram with 2 circuit breakers RT1: Remote-trip input (optionally NC/NO/off)* 8 - A, B Connection to communication interface BMS bus 9 - Ron/off Activate or deactivate the terminating resistor of Supply voltage Us (see ordering details) Power supply connection Connection to alarm relay K1 Connection to alarm relay K2 Circuit breakers Contact monitoring circuit breakers Q1/Q2 DG1/2: GND D1: Feedback signal contact to alarm relay K1 D2: Feedback signal contact to alarm relay K2 (feedback signal contacts optionally NC/NO/off)*...

LINETRAXX® VMD461 with CD440 coupling device Schematic diagram with circuit breakers Circuit breaker Circuit breaker Public grid Example for a system design

LINETRAXX® VMD461 with CD440 coupling device Z BENDER Insulation coordination of the device combination VMD461/CD440: Measuring circuit Rated voltage < 1000 V Rated voltage > 1000 V Definitions Measuring circuit (IC1) Measuring circuit (IC2) Supply circuit (IC3) Control circuit (IC4) Output circuit 1 (IC5) Output circuit 2 (IC6) Output circuit 3 (IC7) Rated voltage Rated impulse voltage Overvoltage category Max. altitude Rated insulation voltage Protective separation (reinforced insulation): DC, 3AC: Overvoltage category III, 1250 V 1AC, 3NAC: Overvoltage category III, 1000 V 300 V 300 V 300...

LINETRAXX® VMD461 with CD440 coupling device Technical data (continued) Digital inputs Monitoring of potential-free contacts or voltage inputs: closed = low; 0.. .4 V; lin < -5 mA open = high; > 6.< 30 V Feedback signal contact of alarm relay K1 Feedback signal contact of alarm relay K2 remote trip max. length of the connecting cables of the digital inputs (shielded cable recommended) Cable length for external test/reset button Displays, memory LC display, multi-functional, illuminated Display range, measured value History memory for the last 300 messages Password per 1 data record measured values...

Ordering details E& BENDER The Power in Electrical Safety6 P.O. Box 1161 • 35301 Grunberg • Germany Londorfer StraBe 65 • 35305 Grunberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: [email protected] • www.bender.de BENDER Group